We’ve seen a lot of shifts in the last few dozen years– my parents lamented that I would never live in a world where a job was something you could have for a lifetime, and people of my parents’s age were tarred with the worst of both– they wree promised a lifetime job but, mid-career, the beginning of the shift came in.

Myself and many of my peers, however, don’t really mind. The average Gen-X-er, it is thought, will have 3-5 careers (not jobs) in his or her lifetime (at last! Somewhere where I’m right on target– my third career in my mid-30s). We were called slackers and told we had ADD in high school and in our 20s, but in all actuality (or at least from my perspective), we are the first wave of constant learning and constantly changing what we do.

The old way My grandmother was born in 1907. She was one of eighteen children because it was the tail-end of an agrarian economy where children’s lives were often too short. There weren’t cars. If my grandmother were in the UK, she’d have been using shillings and guineas.

The people of my grandmother’s time have had to deal with decimalisation, the shift to the metric system, world wars, an end to protectionism, the rise of a globalised economy (twice), the great depression, the end of banking hours, the introduction of ATMs, credit cards, chip-and-pin systems, push-button phones, mobile phones, computers, the Internet (my grandmother stopped here– mobile phones were enough) and more.

…And now You may notice on this list that, as these new introductions have come closer to the present day, they have gotten closer and closer. Disruptive innovations are a huge driver in the economy, from google to facebook to email to twitter to openid to SOAP to java, we have to deal with new things all the time– new modes of interaction, new tools that we love to joke how they “simplify” our lives (we have to email, blog, and tweet)

Not only that, but the rules are changing faster and faster. In accounting, there’s XRBL, new and changing IFRS, and new laws coming in every market due to the financial crisis.

In software development, there are always new frameworks and companies are reinventing themselves so quickly that much software is released as “beta” these days. Gmail has just come out of beta after five years.

Modes of charity, development, and giving are changing constantly– almost too fast for us to keep up.

Your job You have a single job: this job, if you are broadly a professional, is to learn. Constantly. Not necessarily in school, although we do see more people going to school later in life and schools like the Open University reporting increased enrollment.